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Fractal plasmonic surface reader antennas

  • US 9,965,663 B2
  • Filed: 11/06/2017
  • Issued: 05/08/2018
  • Est. Priority Date: 04/08/2015
  • Status: Active Grant
First Claim
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1. A fractal plasmonic surface radio frequency identification system, the system comprising:

  • a plurality of close packed fractal cells disposed on a supporting surface disposed on one face of the plurality of faces, wherein a sub-plurality of fractal cells are disposed along edges of the one face, wherein each fractal cell includes a fractal shape defining an electrical resonator, wherein the plurality of fractal cells are positioned sufficiently close to one another to support plasmonic transfer of energy between the fractal cells, and wherein the plurality of close packed cells are not galvanically connected to one another; and

    at least one RFID tag configured for application to an animal placed;

    wherein the resonator system is operative as a reader antenna for the RFID system to both receive RF energy from and transmit RF energy to the at least one RFID tag on the animal and wherein for transferring RF energy during operation, galvanic attachment to the RFID reader is only at the edge at the fractal cells of the sub-plurality of fractal cells.

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